Re: An intersting idea for ballast.

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Malcolm Watts by way of Terry Fritz <twftesla-at-qwest-dot-net>" <m.j.watts-at-massey.ac.nz>

The catch is in slowing the rotor down. That means power losses 
somewhere, even if the loss is in the form of frictional heating. 
Please correct me if I've misunderstood.

Regards,
malcolm

On 30 Aug 2001, at 19:48, Tesla list wrote:

> Original poster: "D.Wightman by way of Terry Fritz <twftesla-at-qwest-dot-net>"
<dwightman-at-mmcable-dot-com>
> 
> Some of you may think that I am totaly crazy, But just possibly some of
you may
> think that this is a brilliant idea!
> I am a heat and air technician by trade. And just today this dawned on
me. You
> will find that all A/C motors have something called "LRA". That is locked
rotor
> amps.
> Ok here is the idea, Let's say that you get a 3hp 208-230 vac single phase
> electric motor.The LRA is 75 amps.
> Now you hook up your pig in series with the input wiring to the electric
motor.
> Next you attach a second electric motor to the first motor . This will allow
> you to vary the speed of the rotor in the first motor that is
> wired in series with your piggie, or nst. Ahaa!!!! you now have a variable
> ballast! If you look at the data tag on the electric motor that is being used
> as your variable ballast you will also notice that there is another term
called
> "RLA" that is running load amps. On a 3 h/p motor at 230 vac it will be
around
> 17 to 20 amps.
> But the RLA is around 75 amps. Let's say that the motor is a 1075 rpm. That
> means that if you can turn the rotor at 1075 rpm you will allow only 17 to 20
> amps to your tranny. If you can slow down the rotor the amperage will get
> higher, the slower the rotor turns the higher the amperage flow will be.
If you
> do not allow the rotor to turn at all the amperage through the motor to your
> tranny will be the RLA of the motor. This is just Brilliant!!! Who needs a
> welder? These electric motors are everywhere for real cheap.
> Well what is everyone's thoughts?
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> "Nature has stored up in the universe infinite energy.
> The eternal recipient and transmitter of this infinite energy is the ether".
>                                        Nikola Tesla. May 20, 1891.
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